The code will work on any computer, and detailed instructions/video are provided for installing on Windows, MAC or Linux. The purpose of these instructions is assist with deploying on a Synology NAS. The benefit of using your NAS is you don't have to remember to turn on your computer.

I use a calibrated monitor for editing photos, and recently I've had photos where the colours were clearly wrong and couldn't be fixed without complex adjustment layers.

The problem was most evident in portraits. For example, this image taken in sunlight:

Instead looked like this, where her hair has turned an orange/magenta colour, and she also has what appears as a feint orange rash on her forehead. Note this is a photograph of the monitor, and I've tried to adjust white balance, contrast and saturation to reflect accurately the colours I was seeing.

What had gone wrong?Image fault on my Dell U2311H monitorSensor problem on my Canon 7D Mark II DSLR(9 year old) ColorMunki Photo spectrophotometer could have developed a faultPhotographic software playing up.

Julian calendar
The Julian calendar was introduced in 45BC by Julius Caesar, taking over from the Roman calendar.
Under the Julian calendar each year has 365 days, except for a leap year every four years which has 366 days. This averages to 365.25 days. This however does not approximate the actual tropical year (e.g. based on the cycle of the seasons) close enough. Specifically the average year was slightly longer than it should have been (365.24219).

So how bad is the Julian calendar?
365.25 - 365.24219 = 0.00781 days
0.00781 * 24 * 60 = 11.2464 minutes
It was gaining about 11.2464 minutes per year. Hardly consequential - right? Well, that results in an increase of 1 day every 128 years or so. By now (2017) it would be 13 days out. Though after 46,766 years (or so) the Julian calendar would be correct again...
Gregorian calendar
The problem was (mostly) corrected with a new calendar introduced by Pope Gregory XIII in 1582 to reform the Julian calendar. That calendar, the Gre…

I have a lot of travel photos taken on my DSLR that are missing the GPS location. Having the location is handy for friends and family to see exactly where the photos were taken from. Over time your own memory fades too.
Most of my photos are in raw format (Canon CR2), and I can use Picasa to set the GPS location, but only after the photos have been processed and saved as JPG (or TIFF etc). If I add the location to the raw image, then it saves the location to metadata that only Picasa recognises.

If I go back and reprocess the raw photo, then the new JPG will have lost the location information. What I needed was software that could add the location to the raw photo.

I looked around for alternate software, and did try a few things. Usually they didn't work on raw files, or were just clunky to use. Many applications are also designed for taking coordinates from GPS loggers - which I don't have.

Furthermore, I don't want to have to type in GPS coordinates directly, inst…

How to fix the GitLab 502 error
Occasionally when starting GitLab, I get a 502 error ("Whoops, GitLab is taking too much time to respond"). It appears to happen when my Synology NAS has restarted after a power outage.
Checking the Docker GitLab log, I can seen continual messages about trying to restart the "unicorn" process. This also causes high CPU usage.2017-03-27 00:35:08,892 INFO spawned: 'unicorn' with pid 277232017-03-27 00:35:09,896 INFO success: unicorn entered RUNNING state, process has stayed up for &gt; than 1 seconds (startsecs)2017-03-27 00:35:14,277 INFO exited: unicorn (exit status 1; not expected)...